1 /******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2007 - 2014, 2018 - 2020 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * The full GNU General Public License is included in this distribution
22 * in the file called COPYING.
23 *
24 * Contact Information:
25 * Intel Linux Wireless <linuxwifi@intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *
28 * BSD LICENSE
29 *
30 * Copyright(c) 2005 - 2014, 2018 - 2020 Intel Corporation. All rights reserved.
31 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
32 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
33 * All rights reserved.
34 *
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
37 * are met:
38 *
39 * * Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * * Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in
43 * the documentation and/or other materials provided with the
44 * distribution.
45 * * Neither the name Intel Corporation nor the names of its
46 * contributors may be used to endorse or promote products derived
47 * from this software without specific prior written permission.
48 *
49 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
50 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
51 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
52 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
53 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
54 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
55 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
56 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
57 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
59 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
60 *
61 *****************************************************************************/
62 #include <linux/completion.h>
63 #include <linux/dma-mapping.h>
64 #include <linux/firmware.h>
65 #include <linux/module.h>
66 #include <linux/vmalloc.h>
67
68 #include "iwl-drv.h"
69 #include "iwl-csr.h"
70 #include "iwl-debug.h"
71 #include "iwl-trans.h"
72 #include "iwl-op-mode.h"
73 #include "iwl-agn-hw.h"
74 #include "fw/img.h"
75 #include "iwl-dbg-tlv.h"
76 #include "iwl-config.h"
77 #include "iwl-modparams.h"
78 #include "fw/api/alive.h"
79 #include "fw/api/mac.h"
80
81 /******************************************************************************
82 *
83 * module boiler plate
84 *
85 ******************************************************************************/
86
87 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
88 MODULE_DESCRIPTION(DRV_DESCRIPTION);
89 MODULE_AUTHOR(DRV_AUTHOR);
90 MODULE_LICENSE("GPL");
91
92 #ifdef CONFIG_IWLWIFI_DEBUGFS
93 static struct dentry *iwl_dbgfs_root;
94 #endif
95
96 /**
97 * struct iwl_drv - drv common data
98 * @list: list of drv structures using this opmode
99 * @fw: the iwl_fw structure
100 * @op_mode: the running op_mode
101 * @trans: transport layer
102 * @dev: for debug prints only
103 * @fw_index: firmware revision to try loading
104 * @firmware_name: composite filename of ucode file to load
105 * @request_firmware_complete: the firmware has been obtained from user space
106 * @dbgfs_drv: debugfs root directory entry
107 * @dbgfs_trans: debugfs transport directory entry
108 * @dbgfs_op_mode: debugfs op_mode directory entry
109 */
110 struct iwl_drv {
111 struct list_head list;
112 struct iwl_fw fw;
113
114 struct iwl_op_mode *op_mode;
115 struct iwl_trans *trans;
116 struct device *dev;
117
118 int fw_index; /* firmware we're trying to load */
119 char firmware_name[64]; /* name of firmware file to load */
120
121 struct completion request_firmware_complete;
122
123 #ifdef CONFIG_IWLWIFI_DEBUGFS
124 struct dentry *dbgfs_drv;
125 struct dentry *dbgfs_trans;
126 struct dentry *dbgfs_op_mode;
127 #endif
128 };
129
130 enum {
131 DVM_OP_MODE,
132 MVM_OP_MODE,
133 };
134
135 /* Protects the table contents, i.e. the ops pointer & drv list */
136 static struct mutex iwlwifi_opmode_table_mtx;
137 static struct iwlwifi_opmode_table {
138 const char *name; /* name: iwldvm, iwlmvm, etc */
139 const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */
140 struct list_head drv; /* list of devices using this op_mode */
141 } iwlwifi_opmode_table[] = { /* ops set when driver is initialized */
142 [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
143 [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
144 };
145
146 #define IWL_DEFAULT_SCAN_CHANNELS 40
147
148 /*
149 * struct fw_sec: Just for the image parsing process.
150 * For the fw storage we are using struct fw_desc.
151 */
152 struct fw_sec {
153 const void *data; /* the sec data */
154 size_t size; /* section size */
155 u32 offset; /* offset of writing in the device */
156 };
157
iwl_free_fw_desc(struct iwl_drv * drv,struct fw_desc * desc)158 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
159 {
160 vfree(desc->data);
161 desc->data = NULL;
162 desc->len = 0;
163 }
164
iwl_free_fw_img(struct iwl_drv * drv,struct fw_img * img)165 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
166 {
167 int i;
168 for (i = 0; i < img->num_sec; i++)
169 iwl_free_fw_desc(drv, &img->sec[i]);
170 kfree(img->sec);
171 }
172
iwl_dealloc_ucode(struct iwl_drv * drv)173 static void iwl_dealloc_ucode(struct iwl_drv *drv)
174 {
175 int i;
176
177 kfree(drv->fw.dbg.dest_tlv);
178 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++)
179 kfree(drv->fw.dbg.conf_tlv[i]);
180 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++)
181 kfree(drv->fw.dbg.trigger_tlv[i]);
182 kfree(drv->fw.dbg.mem_tlv);
183 kfree(drv->fw.iml);
184 kfree(drv->fw.ucode_capa.cmd_versions);
185
186 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
187 iwl_free_fw_img(drv, drv->fw.img + i);
188 }
189
iwl_alloc_fw_desc(struct iwl_drv * drv,struct fw_desc * desc,struct fw_sec * sec)190 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
191 struct fw_sec *sec)
192 {
193 void *data;
194
195 desc->data = NULL;
196
197 if (!sec || !sec->size)
198 return -EINVAL;
199
200 data = vmalloc(sec->size);
201 if (!data)
202 return -ENOMEM;
203
204 desc->len = sec->size;
205 desc->offset = sec->offset;
206 memcpy(data, sec->data, desc->len);
207 desc->data = data;
208
209 return 0;
210 }
211
212 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
213 void *context);
214
iwl_request_firmware(struct iwl_drv * drv,bool first)215 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
216 {
217 const struct iwl_cfg *cfg = drv->trans->cfg;
218 char tag[8];
219
220 if (drv->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
221 (CSR_HW_REV_STEP(drv->trans->hw_rev) != SILICON_B_STEP &&
222 CSR_HW_REV_STEP(drv->trans->hw_rev) != SILICON_C_STEP)) {
223 IWL_ERR(drv,
224 "Only HW steps B and C are currently supported (0x%0x)\n",
225 drv->trans->hw_rev);
226 return -EINVAL;
227 }
228
229 if (first) {
230 drv->fw_index = cfg->ucode_api_max;
231 sprintf(tag, "%d", drv->fw_index);
232 } else {
233 drv->fw_index--;
234 sprintf(tag, "%d", drv->fw_index);
235 }
236
237 if (drv->fw_index < cfg->ucode_api_min) {
238 IWL_ERR(drv, "no suitable firmware found!\n");
239
240 if (cfg->ucode_api_min == cfg->ucode_api_max) {
241 IWL_ERR(drv, "%s%d is required\n", cfg->fw_name_pre,
242 cfg->ucode_api_max);
243 } else {
244 IWL_ERR(drv, "minimum version required: %s%d\n",
245 cfg->fw_name_pre, cfg->ucode_api_min);
246 IWL_ERR(drv, "maximum version supported: %s%d\n",
247 cfg->fw_name_pre, cfg->ucode_api_max);
248 }
249
250 IWL_ERR(drv,
251 "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
252 return -ENOENT;
253 }
254
255 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
256 cfg->fw_name_pre, tag);
257
258 IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n",
259 drv->firmware_name);
260
261 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
262 drv->trans->dev,
263 GFP_KERNEL, drv, iwl_req_fw_callback);
264 }
265
266 struct fw_img_parsing {
267 struct fw_sec *sec;
268 int sec_counter;
269 };
270
271 /*
272 * struct fw_sec_parsing: to extract fw section and it's offset from tlv
273 */
274 struct fw_sec_parsing {
275 __le32 offset;
276 const u8 data[];
277 } __packed;
278
279 /**
280 * struct iwl_tlv_calib_data - parse the default calib data from TLV
281 *
282 * @ucode_type: the uCode to which the following default calib relates.
283 * @calib: default calibrations.
284 */
285 struct iwl_tlv_calib_data {
286 __le32 ucode_type;
287 struct iwl_tlv_calib_ctrl calib;
288 } __packed;
289
290 struct iwl_firmware_pieces {
291 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
292
293 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
294 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
295
296 /* FW debug data parsed for driver usage */
297 bool dbg_dest_tlv_init;
298 u8 *dbg_dest_ver;
299 union {
300 struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
301 struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
302 };
303 struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
304 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
305 struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
306 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
307 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
308 size_t n_mem_tlv;
309 };
310
311 /*
312 * These functions are just to extract uCode section data from the pieces
313 * structure.
314 */
get_sec(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)315 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
316 enum iwl_ucode_type type,
317 int sec)
318 {
319 return &pieces->img[type].sec[sec];
320 }
321
alloc_sec_data(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)322 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
323 enum iwl_ucode_type type,
324 int sec)
325 {
326 struct fw_img_parsing *img = &pieces->img[type];
327 struct fw_sec *sec_memory;
328 int size = sec + 1;
329 size_t alloc_size = sizeof(*img->sec) * size;
330
331 if (img->sec && img->sec_counter >= size)
332 return;
333
334 sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
335 if (!sec_memory)
336 return;
337
338 img->sec = sec_memory;
339 img->sec_counter = size;
340 }
341
set_sec_data(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,const void * data)342 static void set_sec_data(struct iwl_firmware_pieces *pieces,
343 enum iwl_ucode_type type,
344 int sec,
345 const void *data)
346 {
347 alloc_sec_data(pieces, type, sec);
348
349 pieces->img[type].sec[sec].data = data;
350 }
351
set_sec_size(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,size_t size)352 static void set_sec_size(struct iwl_firmware_pieces *pieces,
353 enum iwl_ucode_type type,
354 int sec,
355 size_t size)
356 {
357 alloc_sec_data(pieces, type, sec);
358
359 pieces->img[type].sec[sec].size = size;
360 }
361
get_sec_size(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)362 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
363 enum iwl_ucode_type type,
364 int sec)
365 {
366 return pieces->img[type].sec[sec].size;
367 }
368
set_sec_offset(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,u32 offset)369 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
370 enum iwl_ucode_type type,
371 int sec,
372 u32 offset)
373 {
374 alloc_sec_data(pieces, type, sec);
375
376 pieces->img[type].sec[sec].offset = offset;
377 }
378
iwl_store_cscheme(struct iwl_fw * fw,const u8 * data,const u32 len)379 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
380 {
381 int i, j;
382 struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
383 struct iwl_fw_cipher_scheme *fwcs;
384
385 if (len < sizeof(*l) ||
386 len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
387 return -EINVAL;
388
389 for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
390 fwcs = &l->cs[j];
391
392 /* we skip schemes with zero cipher suite selector */
393 if (!fwcs->cipher)
394 continue;
395
396 fw->cs[j++] = *fwcs;
397 }
398
399 return 0;
400 }
401
402 /*
403 * Gets uCode section from tlv.
404 */
iwl_store_ucode_sec(struct iwl_firmware_pieces * pieces,const void * data,enum iwl_ucode_type type,int size)405 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
406 const void *data, enum iwl_ucode_type type,
407 int size)
408 {
409 struct fw_img_parsing *img;
410 struct fw_sec *sec;
411 struct fw_sec_parsing *sec_parse;
412 size_t alloc_size;
413
414 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
415 return -1;
416
417 sec_parse = (struct fw_sec_parsing *)data;
418
419 img = &pieces->img[type];
420
421 alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
422 sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
423 if (!sec)
424 return -ENOMEM;
425 img->sec = sec;
426
427 sec = &img->sec[img->sec_counter];
428
429 sec->offset = le32_to_cpu(sec_parse->offset);
430 sec->data = sec_parse->data;
431 sec->size = size - sizeof(sec_parse->offset);
432
433 ++img->sec_counter;
434
435 return 0;
436 }
437
iwl_set_default_calib(struct iwl_drv * drv,const u8 * data)438 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
439 {
440 struct iwl_tlv_calib_data *def_calib =
441 (struct iwl_tlv_calib_data *)data;
442 u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
443 if (ucode_type >= IWL_UCODE_TYPE_MAX) {
444 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
445 ucode_type);
446 return -EINVAL;
447 }
448 drv->fw.default_calib[ucode_type].flow_trigger =
449 def_calib->calib.flow_trigger;
450 drv->fw.default_calib[ucode_type].event_trigger =
451 def_calib->calib.event_trigger;
452
453 return 0;
454 }
455
iwl_set_ucode_api_flags(struct iwl_drv * drv,const u8 * data,struct iwl_ucode_capabilities * capa)456 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
457 struct iwl_ucode_capabilities *capa)
458 {
459 const struct iwl_ucode_api *ucode_api = (void *)data;
460 u32 api_index = le32_to_cpu(ucode_api->api_index);
461 u32 api_flags = le32_to_cpu(ucode_api->api_flags);
462 int i;
463
464 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
465 IWL_WARN(drv,
466 "api flags index %d larger than supported by driver\n",
467 api_index);
468 return;
469 }
470
471 for (i = 0; i < 32; i++) {
472 if (api_flags & BIT(i))
473 __set_bit(i + 32 * api_index, capa->_api);
474 }
475 }
476
iwl_set_ucode_capabilities(struct iwl_drv * drv,const u8 * data,struct iwl_ucode_capabilities * capa)477 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
478 struct iwl_ucode_capabilities *capa)
479 {
480 const struct iwl_ucode_capa *ucode_capa = (void *)data;
481 u32 api_index = le32_to_cpu(ucode_capa->api_index);
482 u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
483 int i;
484
485 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
486 IWL_WARN(drv,
487 "capa flags index %d larger than supported by driver\n",
488 api_index);
489 return;
490 }
491
492 for (i = 0; i < 32; i++) {
493 if (api_flags & BIT(i))
494 __set_bit(i + 32 * api_index, capa->_capa);
495 }
496 }
497
iwl_reduced_fw_name(struct iwl_drv * drv)498 static const char *iwl_reduced_fw_name(struct iwl_drv *drv)
499 {
500 const char *name = drv->firmware_name;
501
502 if (strncmp(name, "iwlwifi-", 8) == 0)
503 name += 8;
504
505 return name;
506 }
507
iwl_parse_v1_v2_firmware(struct iwl_drv * drv,const struct firmware * ucode_raw,struct iwl_firmware_pieces * pieces)508 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
509 const struct firmware *ucode_raw,
510 struct iwl_firmware_pieces *pieces)
511 {
512 struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
513 u32 api_ver, hdr_size, build;
514 char buildstr[25];
515 const u8 *src;
516
517 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
518 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
519
520 switch (api_ver) {
521 default:
522 hdr_size = 28;
523 if (ucode_raw->size < hdr_size) {
524 IWL_ERR(drv, "File size too small!\n");
525 return -EINVAL;
526 }
527 build = le32_to_cpu(ucode->u.v2.build);
528 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
529 le32_to_cpu(ucode->u.v2.inst_size));
530 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
531 le32_to_cpu(ucode->u.v2.data_size));
532 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
533 le32_to_cpu(ucode->u.v2.init_size));
534 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
535 le32_to_cpu(ucode->u.v2.init_data_size));
536 src = ucode->u.v2.data;
537 break;
538 case 0:
539 case 1:
540 case 2:
541 hdr_size = 24;
542 if (ucode_raw->size < hdr_size) {
543 IWL_ERR(drv, "File size too small!\n");
544 return -EINVAL;
545 }
546 build = 0;
547 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
548 le32_to_cpu(ucode->u.v1.inst_size));
549 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
550 le32_to_cpu(ucode->u.v1.data_size));
551 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
552 le32_to_cpu(ucode->u.v1.init_size));
553 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
554 le32_to_cpu(ucode->u.v1.init_data_size));
555 src = ucode->u.v1.data;
556 break;
557 }
558
559 if (build)
560 sprintf(buildstr, " build %u", build);
561 else
562 buildstr[0] = '\0';
563
564 snprintf(drv->fw.fw_version,
565 sizeof(drv->fw.fw_version),
566 "%u.%u.%u.%u%s %s",
567 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
568 IWL_UCODE_MINOR(drv->fw.ucode_ver),
569 IWL_UCODE_API(drv->fw.ucode_ver),
570 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
571 buildstr, iwl_reduced_fw_name(drv));
572
573 /* Verify size of file vs. image size info in file's header */
574
575 if (ucode_raw->size != hdr_size +
576 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
577 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
578 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
579 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
580
581 IWL_ERR(drv,
582 "uCode file size %d does not match expected size\n",
583 (int)ucode_raw->size);
584 return -EINVAL;
585 }
586
587
588 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
589 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
590 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
591 IWLAGN_RTC_INST_LOWER_BOUND);
592 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
593 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
594 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
595 IWLAGN_RTC_DATA_LOWER_BOUND);
596 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
597 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
598 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
599 IWLAGN_RTC_INST_LOWER_BOUND);
600 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
601 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
602 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
603 IWLAGN_RTC_DATA_LOWER_BOUND);
604 return 0;
605 }
606
607 #define FW_ADDR_CACHE_CONTROL 0xC0000000
608
iwl_parse_tlv_firmware(struct iwl_drv * drv,const struct firmware * ucode_raw,struct iwl_firmware_pieces * pieces,struct iwl_ucode_capabilities * capa,bool * usniffer_images)609 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
610 const struct firmware *ucode_raw,
611 struct iwl_firmware_pieces *pieces,
612 struct iwl_ucode_capabilities *capa,
613 bool *usniffer_images)
614 {
615 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
616 struct iwl_ucode_tlv *tlv;
617 size_t len = ucode_raw->size;
618 const u8 *data;
619 u32 tlv_len;
620 u32 usniffer_img;
621 enum iwl_ucode_tlv_type tlv_type;
622 const u8 *tlv_data;
623 char buildstr[25];
624 u32 build, paging_mem_size;
625 int num_of_cpus;
626 bool usniffer_req = false;
627
628 if (len < sizeof(*ucode)) {
629 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
630 return -EINVAL;
631 }
632
633 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
634 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
635 le32_to_cpu(ucode->magic));
636 return -EINVAL;
637 }
638
639 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
640 memcpy(drv->fw.human_readable, ucode->human_readable,
641 sizeof(drv->fw.human_readable));
642 build = le32_to_cpu(ucode->build);
643
644 if (build)
645 sprintf(buildstr, " build %u", build);
646 else
647 buildstr[0] = '\0';
648
649 snprintf(drv->fw.fw_version,
650 sizeof(drv->fw.fw_version),
651 "%u.%u.%u.%u%s %s",
652 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
653 IWL_UCODE_MINOR(drv->fw.ucode_ver),
654 IWL_UCODE_API(drv->fw.ucode_ver),
655 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
656 buildstr, iwl_reduced_fw_name(drv));
657
658 data = ucode->data;
659
660 len -= sizeof(*ucode);
661
662 while (len >= sizeof(*tlv)) {
663 len -= sizeof(*tlv);
664 tlv = (void *)data;
665
666 tlv_len = le32_to_cpu(tlv->length);
667 tlv_type = le32_to_cpu(tlv->type);
668 tlv_data = tlv->data;
669
670 if (len < tlv_len) {
671 IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
672 len, tlv_len);
673 return -EINVAL;
674 }
675 len -= ALIGN(tlv_len, 4);
676 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
677
678 switch (tlv_type) {
679 case IWL_UCODE_TLV_INST:
680 set_sec_data(pieces, IWL_UCODE_REGULAR,
681 IWL_UCODE_SECTION_INST, tlv_data);
682 set_sec_size(pieces, IWL_UCODE_REGULAR,
683 IWL_UCODE_SECTION_INST, tlv_len);
684 set_sec_offset(pieces, IWL_UCODE_REGULAR,
685 IWL_UCODE_SECTION_INST,
686 IWLAGN_RTC_INST_LOWER_BOUND);
687 break;
688 case IWL_UCODE_TLV_DATA:
689 set_sec_data(pieces, IWL_UCODE_REGULAR,
690 IWL_UCODE_SECTION_DATA, tlv_data);
691 set_sec_size(pieces, IWL_UCODE_REGULAR,
692 IWL_UCODE_SECTION_DATA, tlv_len);
693 set_sec_offset(pieces, IWL_UCODE_REGULAR,
694 IWL_UCODE_SECTION_DATA,
695 IWLAGN_RTC_DATA_LOWER_BOUND);
696 break;
697 case IWL_UCODE_TLV_INIT:
698 set_sec_data(pieces, IWL_UCODE_INIT,
699 IWL_UCODE_SECTION_INST, tlv_data);
700 set_sec_size(pieces, IWL_UCODE_INIT,
701 IWL_UCODE_SECTION_INST, tlv_len);
702 set_sec_offset(pieces, IWL_UCODE_INIT,
703 IWL_UCODE_SECTION_INST,
704 IWLAGN_RTC_INST_LOWER_BOUND);
705 break;
706 case IWL_UCODE_TLV_INIT_DATA:
707 set_sec_data(pieces, IWL_UCODE_INIT,
708 IWL_UCODE_SECTION_DATA, tlv_data);
709 set_sec_size(pieces, IWL_UCODE_INIT,
710 IWL_UCODE_SECTION_DATA, tlv_len);
711 set_sec_offset(pieces, IWL_UCODE_INIT,
712 IWL_UCODE_SECTION_DATA,
713 IWLAGN_RTC_DATA_LOWER_BOUND);
714 break;
715 case IWL_UCODE_TLV_BOOT:
716 IWL_ERR(drv, "Found unexpected BOOT ucode\n");
717 break;
718 case IWL_UCODE_TLV_PROBE_MAX_LEN:
719 if (tlv_len != sizeof(u32))
720 goto invalid_tlv_len;
721 capa->max_probe_length =
722 le32_to_cpup((__le32 *)tlv_data);
723 break;
724 case IWL_UCODE_TLV_PAN:
725 if (tlv_len)
726 goto invalid_tlv_len;
727 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
728 break;
729 case IWL_UCODE_TLV_FLAGS:
730 /* must be at least one u32 */
731 if (tlv_len < sizeof(u32))
732 goto invalid_tlv_len;
733 /* and a proper number of u32s */
734 if (tlv_len % sizeof(u32))
735 goto invalid_tlv_len;
736 /*
737 * This driver only reads the first u32 as
738 * right now no more features are defined,
739 * if that changes then either the driver
740 * will not work with the new firmware, or
741 * it'll not take advantage of new features.
742 */
743 capa->flags = le32_to_cpup((__le32 *)tlv_data);
744 break;
745 case IWL_UCODE_TLV_API_CHANGES_SET:
746 if (tlv_len != sizeof(struct iwl_ucode_api))
747 goto invalid_tlv_len;
748 iwl_set_ucode_api_flags(drv, tlv_data, capa);
749 break;
750 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
751 if (tlv_len != sizeof(struct iwl_ucode_capa))
752 goto invalid_tlv_len;
753 iwl_set_ucode_capabilities(drv, tlv_data, capa);
754 break;
755 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
756 if (tlv_len != sizeof(u32))
757 goto invalid_tlv_len;
758 pieces->init_evtlog_ptr =
759 le32_to_cpup((__le32 *)tlv_data);
760 break;
761 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
762 if (tlv_len != sizeof(u32))
763 goto invalid_tlv_len;
764 pieces->init_evtlog_size =
765 le32_to_cpup((__le32 *)tlv_data);
766 break;
767 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
768 if (tlv_len != sizeof(u32))
769 goto invalid_tlv_len;
770 pieces->init_errlog_ptr =
771 le32_to_cpup((__le32 *)tlv_data);
772 break;
773 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
774 if (tlv_len != sizeof(u32))
775 goto invalid_tlv_len;
776 pieces->inst_evtlog_ptr =
777 le32_to_cpup((__le32 *)tlv_data);
778 break;
779 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
780 if (tlv_len != sizeof(u32))
781 goto invalid_tlv_len;
782 pieces->inst_evtlog_size =
783 le32_to_cpup((__le32 *)tlv_data);
784 break;
785 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
786 if (tlv_len != sizeof(u32))
787 goto invalid_tlv_len;
788 pieces->inst_errlog_ptr =
789 le32_to_cpup((__le32 *)tlv_data);
790 break;
791 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
792 if (tlv_len)
793 goto invalid_tlv_len;
794 drv->fw.enhance_sensitivity_table = true;
795 break;
796 case IWL_UCODE_TLV_WOWLAN_INST:
797 set_sec_data(pieces, IWL_UCODE_WOWLAN,
798 IWL_UCODE_SECTION_INST, tlv_data);
799 set_sec_size(pieces, IWL_UCODE_WOWLAN,
800 IWL_UCODE_SECTION_INST, tlv_len);
801 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
802 IWL_UCODE_SECTION_INST,
803 IWLAGN_RTC_INST_LOWER_BOUND);
804 break;
805 case IWL_UCODE_TLV_WOWLAN_DATA:
806 set_sec_data(pieces, IWL_UCODE_WOWLAN,
807 IWL_UCODE_SECTION_DATA, tlv_data);
808 set_sec_size(pieces, IWL_UCODE_WOWLAN,
809 IWL_UCODE_SECTION_DATA, tlv_len);
810 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
811 IWL_UCODE_SECTION_DATA,
812 IWLAGN_RTC_DATA_LOWER_BOUND);
813 break;
814 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
815 if (tlv_len != sizeof(u32))
816 goto invalid_tlv_len;
817 capa->standard_phy_calibration_size =
818 le32_to_cpup((__le32 *)tlv_data);
819 break;
820 case IWL_UCODE_TLV_SEC_RT:
821 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
822 tlv_len);
823 drv->fw.type = IWL_FW_MVM;
824 break;
825 case IWL_UCODE_TLV_SEC_INIT:
826 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
827 tlv_len);
828 drv->fw.type = IWL_FW_MVM;
829 break;
830 case IWL_UCODE_TLV_SEC_WOWLAN:
831 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
832 tlv_len);
833 drv->fw.type = IWL_FW_MVM;
834 break;
835 case IWL_UCODE_TLV_DEF_CALIB:
836 if (tlv_len != sizeof(struct iwl_tlv_calib_data))
837 goto invalid_tlv_len;
838 if (iwl_set_default_calib(drv, tlv_data))
839 goto tlv_error;
840 break;
841 case IWL_UCODE_TLV_PHY_SKU:
842 if (tlv_len != sizeof(u32))
843 goto invalid_tlv_len;
844 drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
845 drv->fw.valid_tx_ant = (drv->fw.phy_config &
846 FW_PHY_CFG_TX_CHAIN) >>
847 FW_PHY_CFG_TX_CHAIN_POS;
848 drv->fw.valid_rx_ant = (drv->fw.phy_config &
849 FW_PHY_CFG_RX_CHAIN) >>
850 FW_PHY_CFG_RX_CHAIN_POS;
851 break;
852 case IWL_UCODE_TLV_SECURE_SEC_RT:
853 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
854 tlv_len);
855 drv->fw.type = IWL_FW_MVM;
856 break;
857 case IWL_UCODE_TLV_SECURE_SEC_INIT:
858 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
859 tlv_len);
860 drv->fw.type = IWL_FW_MVM;
861 break;
862 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
863 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
864 tlv_len);
865 drv->fw.type = IWL_FW_MVM;
866 break;
867 case IWL_UCODE_TLV_NUM_OF_CPU:
868 if (tlv_len != sizeof(u32))
869 goto invalid_tlv_len;
870 num_of_cpus =
871 le32_to_cpup((__le32 *)tlv_data);
872
873 if (num_of_cpus == 2) {
874 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
875 true;
876 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
877 true;
878 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
879 true;
880 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
881 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
882 return -EINVAL;
883 }
884 break;
885 case IWL_UCODE_TLV_CSCHEME:
886 if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
887 goto invalid_tlv_len;
888 break;
889 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
890 if (tlv_len != sizeof(u32))
891 goto invalid_tlv_len;
892 capa->n_scan_channels =
893 le32_to_cpup((__le32 *)tlv_data);
894 break;
895 case IWL_UCODE_TLV_FW_VERSION: {
896 __le32 *ptr = (void *)tlv_data;
897 u32 major, minor;
898 u8 local_comp;
899
900 if (tlv_len != sizeof(u32) * 3)
901 goto invalid_tlv_len;
902
903 major = le32_to_cpup(ptr++);
904 minor = le32_to_cpup(ptr++);
905 local_comp = le32_to_cpup(ptr);
906
907 if (major >= 35)
908 snprintf(drv->fw.fw_version,
909 sizeof(drv->fw.fw_version),
910 "%u.%08x.%u %s", major, minor,
911 local_comp, iwl_reduced_fw_name(drv));
912 else
913 snprintf(drv->fw.fw_version,
914 sizeof(drv->fw.fw_version),
915 "%u.%u.%u %s", major, minor,
916 local_comp, iwl_reduced_fw_name(drv));
917 break;
918 }
919 case IWL_UCODE_TLV_FW_DBG_DEST: {
920 struct iwl_fw_dbg_dest_tlv *dest = NULL;
921 struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
922 u8 mon_mode;
923
924 pieces->dbg_dest_ver = (u8 *)tlv_data;
925 if (*pieces->dbg_dest_ver == 1) {
926 dest = (void *)tlv_data;
927 } else if (*pieces->dbg_dest_ver == 0) {
928 dest_v1 = (void *)tlv_data;
929 } else {
930 IWL_ERR(drv,
931 "The version is %d, and it is invalid\n",
932 *pieces->dbg_dest_ver);
933 break;
934 }
935
936 if (pieces->dbg_dest_tlv_init) {
937 IWL_ERR(drv,
938 "dbg destination ignored, already exists\n");
939 break;
940 }
941
942 pieces->dbg_dest_tlv_init = true;
943
944 if (dest_v1) {
945 pieces->dbg_dest_tlv_v1 = dest_v1;
946 mon_mode = dest_v1->monitor_mode;
947 } else {
948 pieces->dbg_dest_tlv = dest;
949 mon_mode = dest->monitor_mode;
950 }
951
952 IWL_INFO(drv, "Found debug destination: %s\n",
953 get_fw_dbg_mode_string(mon_mode));
954
955 drv->fw.dbg.n_dest_reg = (dest_v1) ?
956 tlv_len -
957 offsetof(struct iwl_fw_dbg_dest_tlv_v1,
958 reg_ops) :
959 tlv_len -
960 offsetof(struct iwl_fw_dbg_dest_tlv,
961 reg_ops);
962
963 drv->fw.dbg.n_dest_reg /=
964 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]);
965
966 break;
967 }
968 case IWL_UCODE_TLV_FW_DBG_CONF: {
969 struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
970
971 if (!pieces->dbg_dest_tlv_init) {
972 IWL_ERR(drv,
973 "Ignore dbg config %d - no destination configured\n",
974 conf->id);
975 break;
976 }
977
978 if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) {
979 IWL_ERR(drv,
980 "Skip unknown configuration: %d\n",
981 conf->id);
982 break;
983 }
984
985 if (pieces->dbg_conf_tlv[conf->id]) {
986 IWL_ERR(drv,
987 "Ignore duplicate dbg config %d\n",
988 conf->id);
989 break;
990 }
991
992 if (conf->usniffer)
993 usniffer_req = true;
994
995 IWL_INFO(drv, "Found debug configuration: %d\n",
996 conf->id);
997
998 pieces->dbg_conf_tlv[conf->id] = conf;
999 pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
1000 break;
1001 }
1002 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
1003 struct iwl_fw_dbg_trigger_tlv *trigger =
1004 (void *)tlv_data;
1005 u32 trigger_id = le32_to_cpu(trigger->id);
1006
1007 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) {
1008 IWL_ERR(drv,
1009 "Skip unknown trigger: %u\n",
1010 trigger->id);
1011 break;
1012 }
1013
1014 if (pieces->dbg_trigger_tlv[trigger_id]) {
1015 IWL_ERR(drv,
1016 "Ignore duplicate dbg trigger %u\n",
1017 trigger->id);
1018 break;
1019 }
1020
1021 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1022
1023 pieces->dbg_trigger_tlv[trigger_id] = trigger;
1024 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1025 break;
1026 }
1027 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
1028 if (tlv_len != sizeof(u32)) {
1029 IWL_ERR(drv,
1030 "dbg lst mask size incorrect, skip\n");
1031 break;
1032 }
1033
1034 drv->fw.dbg.dump_mask =
1035 le32_to_cpup((__le32 *)tlv_data);
1036 break;
1037 }
1038 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1039 *usniffer_images = true;
1040 iwl_store_ucode_sec(pieces, tlv_data,
1041 IWL_UCODE_REGULAR_USNIFFER,
1042 tlv_len);
1043 break;
1044 case IWL_UCODE_TLV_PAGING:
1045 if (tlv_len != sizeof(u32))
1046 goto invalid_tlv_len;
1047 paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
1048
1049 IWL_DEBUG_FW(drv,
1050 "Paging: paging enabled (size = %u bytes)\n",
1051 paging_mem_size);
1052
1053 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1054 IWL_ERR(drv,
1055 "Paging: driver supports up to %lu bytes for paging image\n",
1056 MAX_PAGING_IMAGE_SIZE);
1057 return -EINVAL;
1058 }
1059
1060 if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1061 IWL_ERR(drv,
1062 "Paging: image isn't multiple %lu\n",
1063 FW_PAGING_SIZE);
1064 return -EINVAL;
1065 }
1066
1067 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1068 paging_mem_size;
1069 usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1070 drv->fw.img[usniffer_img].paging_mem_size =
1071 paging_mem_size;
1072 break;
1073 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1074 /* ignored */
1075 break;
1076 case IWL_UCODE_TLV_FW_MEM_SEG: {
1077 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1078 (void *)tlv_data;
1079 size_t size;
1080 struct iwl_fw_dbg_mem_seg_tlv *n;
1081
1082 if (tlv_len != (sizeof(*dbg_mem)))
1083 goto invalid_tlv_len;
1084
1085 IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1086 dbg_mem->data_type);
1087
1088 size = sizeof(*pieces->dbg_mem_tlv) *
1089 (pieces->n_mem_tlv + 1);
1090 n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1091 if (!n)
1092 return -ENOMEM;
1093 pieces->dbg_mem_tlv = n;
1094 pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem;
1095 pieces->n_mem_tlv++;
1096 break;
1097 }
1098 case IWL_UCODE_TLV_IML: {
1099 drv->fw.iml_len = tlv_len;
1100 drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1101 if (!drv->fw.iml)
1102 return -ENOMEM;
1103 break;
1104 }
1105 case IWL_UCODE_TLV_FW_RECOVERY_INFO: {
1106 struct {
1107 __le32 buf_addr;
1108 __le32 buf_size;
1109 } *recov_info = (void *)tlv_data;
1110
1111 if (tlv_len != sizeof(*recov_info))
1112 goto invalid_tlv_len;
1113 capa->error_log_addr =
1114 le32_to_cpu(recov_info->buf_addr);
1115 capa->error_log_size =
1116 le32_to_cpu(recov_info->buf_size);
1117 }
1118 break;
1119 case IWL_UCODE_TLV_FW_FSEQ_VERSION: {
1120 struct {
1121 u8 version[32];
1122 u8 sha1[20];
1123 } *fseq_ver = (void *)tlv_data;
1124
1125 if (tlv_len != sizeof(*fseq_ver))
1126 goto invalid_tlv_len;
1127 IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n",
1128 fseq_ver->version);
1129 }
1130 break;
1131 case IWL_UCODE_TLV_FW_NUM_STATIONS:
1132 if (tlv_len != sizeof(u32))
1133 goto invalid_tlv_len;
1134 if (le32_to_cpup((__le32 *)tlv_data) >
1135 IWL_MVM_STATION_COUNT_MAX) {
1136 IWL_ERR(drv,
1137 "%d is an invalid number of station\n",
1138 le32_to_cpup((__le32 *)tlv_data));
1139 goto tlv_error;
1140 }
1141 capa->num_stations =
1142 le32_to_cpup((__le32 *)tlv_data);
1143 break;
1144 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: {
1145 struct iwl_umac_debug_addrs *dbg_ptrs =
1146 (void *)tlv_data;
1147
1148 if (tlv_len != sizeof(*dbg_ptrs))
1149 goto invalid_tlv_len;
1150 if (drv->trans->trans_cfg->device_family <
1151 IWL_DEVICE_FAMILY_22000)
1152 break;
1153 drv->trans->dbg.umac_error_event_table =
1154 le32_to_cpu(dbg_ptrs->error_info_addr) &
1155 ~FW_ADDR_CACHE_CONTROL;
1156 drv->trans->dbg.error_event_table_tlv_status |=
1157 IWL_ERROR_EVENT_TABLE_UMAC;
1158 break;
1159 }
1160 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: {
1161 struct iwl_lmac_debug_addrs *dbg_ptrs =
1162 (void *)tlv_data;
1163
1164 if (tlv_len != sizeof(*dbg_ptrs))
1165 goto invalid_tlv_len;
1166 if (drv->trans->trans_cfg->device_family <
1167 IWL_DEVICE_FAMILY_22000)
1168 break;
1169 drv->trans->dbg.lmac_error_event_table[0] =
1170 le32_to_cpu(dbg_ptrs->error_event_table_ptr) &
1171 ~FW_ADDR_CACHE_CONTROL;
1172 drv->trans->dbg.error_event_table_tlv_status |=
1173 IWL_ERROR_EVENT_TABLE_LMAC1;
1174 break;
1175 }
1176 case IWL_UCODE_TLV_TYPE_DEBUG_INFO:
1177 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
1178 case IWL_UCODE_TLV_TYPE_HCMD:
1179 case IWL_UCODE_TLV_TYPE_REGIONS:
1180 case IWL_UCODE_TLV_TYPE_TRIGGERS:
1181 if (iwlwifi_mod_params.enable_ini)
1182 iwl_dbg_tlv_alloc(drv->trans, tlv, false);
1183 break;
1184 case IWL_UCODE_TLV_CMD_VERSIONS:
1185 if (tlv_len % sizeof(struct iwl_fw_cmd_version)) {
1186 IWL_ERR(drv,
1187 "Invalid length for command versions: %u\n",
1188 tlv_len);
1189 tlv_len /= sizeof(struct iwl_fw_cmd_version);
1190 tlv_len *= sizeof(struct iwl_fw_cmd_version);
1191 }
1192 if (WARN_ON(capa->cmd_versions))
1193 return -EINVAL;
1194 capa->cmd_versions = kmemdup(tlv_data, tlv_len,
1195 GFP_KERNEL);
1196 if (!capa->cmd_versions)
1197 return -ENOMEM;
1198 capa->n_cmd_versions =
1199 tlv_len / sizeof(struct iwl_fw_cmd_version);
1200 break;
1201 default:
1202 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1203 break;
1204 }
1205 }
1206
1207 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1208 usniffer_req && !*usniffer_images) {
1209 IWL_ERR(drv,
1210 "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1211 return -EINVAL;
1212 }
1213
1214 if (len) {
1215 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1216 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1217 return -EINVAL;
1218 }
1219
1220 return 0;
1221
1222 invalid_tlv_len:
1223 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1224 tlv_error:
1225 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1226
1227 return -EINVAL;
1228 }
1229
iwl_alloc_ucode(struct iwl_drv * drv,struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type)1230 static int iwl_alloc_ucode(struct iwl_drv *drv,
1231 struct iwl_firmware_pieces *pieces,
1232 enum iwl_ucode_type type)
1233 {
1234 int i;
1235 struct fw_desc *sec;
1236
1237 sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1238 if (!sec)
1239 return -ENOMEM;
1240 drv->fw.img[type].sec = sec;
1241 drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1242
1243 for (i = 0; i < pieces->img[type].sec_counter; i++)
1244 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1245 return -ENOMEM;
1246
1247 return 0;
1248 }
1249
validate_sec_sizes(struct iwl_drv * drv,struct iwl_firmware_pieces * pieces,const struct iwl_cfg * cfg)1250 static int validate_sec_sizes(struct iwl_drv *drv,
1251 struct iwl_firmware_pieces *pieces,
1252 const struct iwl_cfg *cfg)
1253 {
1254 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1255 get_sec_size(pieces, IWL_UCODE_REGULAR,
1256 IWL_UCODE_SECTION_INST));
1257 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1258 get_sec_size(pieces, IWL_UCODE_REGULAR,
1259 IWL_UCODE_SECTION_DATA));
1260 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1261 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1262 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1263 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1264
1265 /* Verify that uCode images will fit in card's SRAM. */
1266 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1267 cfg->max_inst_size) {
1268 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1269 get_sec_size(pieces, IWL_UCODE_REGULAR,
1270 IWL_UCODE_SECTION_INST));
1271 return -1;
1272 }
1273
1274 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1275 cfg->max_data_size) {
1276 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1277 get_sec_size(pieces, IWL_UCODE_REGULAR,
1278 IWL_UCODE_SECTION_DATA));
1279 return -1;
1280 }
1281
1282 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1283 cfg->max_inst_size) {
1284 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1285 get_sec_size(pieces, IWL_UCODE_INIT,
1286 IWL_UCODE_SECTION_INST));
1287 return -1;
1288 }
1289
1290 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1291 cfg->max_data_size) {
1292 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1293 get_sec_size(pieces, IWL_UCODE_REGULAR,
1294 IWL_UCODE_SECTION_DATA));
1295 return -1;
1296 }
1297 return 0;
1298 }
1299
1300 static struct iwl_op_mode *
_iwl_op_mode_start(struct iwl_drv * drv,struct iwlwifi_opmode_table * op)1301 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1302 {
1303 const struct iwl_op_mode_ops *ops = op->ops;
1304 struct dentry *dbgfs_dir = NULL;
1305 struct iwl_op_mode *op_mode = NULL;
1306
1307 #ifdef CONFIG_IWLWIFI_DEBUGFS
1308 drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1309 drv->dbgfs_drv);
1310 dbgfs_dir = drv->dbgfs_op_mode;
1311 #endif
1312
1313 op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir);
1314
1315 #ifdef CONFIG_IWLWIFI_DEBUGFS
1316 if (!op_mode) {
1317 debugfs_remove_recursive(drv->dbgfs_op_mode);
1318 drv->dbgfs_op_mode = NULL;
1319 }
1320 #endif
1321
1322 return op_mode;
1323 }
1324
_iwl_op_mode_stop(struct iwl_drv * drv)1325 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1326 {
1327 /* op_mode can be NULL if its start failed */
1328 if (drv->op_mode) {
1329 iwl_op_mode_stop(drv->op_mode);
1330 drv->op_mode = NULL;
1331
1332 #ifdef CONFIG_IWLWIFI_DEBUGFS
1333 debugfs_remove_recursive(drv->dbgfs_op_mode);
1334 drv->dbgfs_op_mode = NULL;
1335 #endif
1336 }
1337 }
1338
1339 /*
1340 * iwl_req_fw_callback - callback when firmware was loaded
1341 *
1342 * If loaded successfully, copies the firmware into buffers
1343 * for the card to fetch (via DMA).
1344 */
iwl_req_fw_callback(const struct firmware * ucode_raw,void * context)1345 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1346 {
1347 struct iwl_drv *drv = context;
1348 struct iwl_fw *fw = &drv->fw;
1349 struct iwl_ucode_header *ucode;
1350 struct iwlwifi_opmode_table *op;
1351 int err;
1352 struct iwl_firmware_pieces *pieces;
1353 const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1354 const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1355 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1356 u32 api_ver;
1357 int i;
1358 bool load_module = false;
1359 bool usniffer_images = false;
1360
1361 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1362 fw->ucode_capa.standard_phy_calibration_size =
1363 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1364 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1365 fw->ucode_capa.num_stations = IWL_MVM_STATION_COUNT_MAX;
1366 /* dump all fw memory areas by default */
1367 fw->dbg.dump_mask = 0xffffffff;
1368
1369 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1370 if (!pieces)
1371 goto out_free_fw;
1372
1373 if (!ucode_raw)
1374 goto try_again;
1375
1376 IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1377 drv->firmware_name, ucode_raw->size);
1378
1379 /* Make sure that we got at least the API version number */
1380 if (ucode_raw->size < 4) {
1381 IWL_ERR(drv, "File size way too small!\n");
1382 goto try_again;
1383 }
1384
1385 /* Data from ucode file: header followed by uCode images */
1386 ucode = (struct iwl_ucode_header *)ucode_raw->data;
1387
1388 if (ucode->ver)
1389 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1390 else
1391 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1392 &fw->ucode_capa, &usniffer_images);
1393
1394 if (err)
1395 goto try_again;
1396
1397 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1398 api_ver = drv->fw.ucode_ver;
1399 else
1400 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1401
1402 /*
1403 * api_ver should match the api version forming part of the
1404 * firmware filename ... but we don't check for that and only rely
1405 * on the API version read from firmware header from here on forward
1406 */
1407 if (api_ver < api_min || api_ver > api_max) {
1408 IWL_ERR(drv,
1409 "Driver unable to support your firmware API. "
1410 "Driver supports v%u, firmware is v%u.\n",
1411 api_max, api_ver);
1412 goto try_again;
1413 }
1414
1415 /*
1416 * In mvm uCode there is no difference between data and instructions
1417 * sections.
1418 */
1419 if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1420 drv->trans->cfg))
1421 goto try_again;
1422
1423 /* Allocate ucode buffers for card's bus-master loading ... */
1424
1425 /* Runtime instructions and 2 copies of data:
1426 * 1) unmodified from disk
1427 * 2) backup cache for save/restore during power-downs
1428 */
1429 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1430 if (iwl_alloc_ucode(drv, pieces, i))
1431 goto out_free_fw;
1432
1433 if (pieces->dbg_dest_tlv_init) {
1434 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) +
1435 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1436 drv->fw.dbg.n_dest_reg;
1437
1438 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1439
1440 if (!drv->fw.dbg.dest_tlv)
1441 goto out_free_fw;
1442
1443 if (*pieces->dbg_dest_ver == 0) {
1444 memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1,
1445 dbg_dest_size);
1446 } else {
1447 struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1448 drv->fw.dbg.dest_tlv;
1449
1450 dest_tlv->version = pieces->dbg_dest_tlv->version;
1451 dest_tlv->monitor_mode =
1452 pieces->dbg_dest_tlv->monitor_mode;
1453 dest_tlv->size_power =
1454 pieces->dbg_dest_tlv->size_power;
1455 dest_tlv->wrap_count =
1456 pieces->dbg_dest_tlv->wrap_count;
1457 dest_tlv->write_ptr_reg =
1458 pieces->dbg_dest_tlv->write_ptr_reg;
1459 dest_tlv->base_shift =
1460 pieces->dbg_dest_tlv->base_shift;
1461 memcpy(dest_tlv->reg_ops,
1462 pieces->dbg_dest_tlv->reg_ops,
1463 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1464 drv->fw.dbg.n_dest_reg);
1465
1466 /* In version 1 of the destination tlv, which is
1467 * relevant for internal buffer exclusively,
1468 * the base address is part of given with the length
1469 * of the buffer, and the size shift is give instead of
1470 * end shift. We now store these values in base_reg,
1471 * and end shift, and when dumping the data we'll
1472 * manipulate it for extracting both the length and
1473 * base address */
1474 dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1475 dest_tlv->end_shift =
1476 pieces->dbg_dest_tlv->size_shift;
1477 }
1478 }
1479
1480 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) {
1481 if (pieces->dbg_conf_tlv[i]) {
1482 drv->fw.dbg.conf_tlv[i] =
1483 kmemdup(pieces->dbg_conf_tlv[i],
1484 pieces->dbg_conf_tlv_len[i],
1485 GFP_KERNEL);
1486 if (!drv->fw.dbg.conf_tlv[i])
1487 goto out_free_fw;
1488 }
1489 }
1490
1491 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1492
1493 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1494 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1495 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1496 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1497 sizeof(struct iwl_fw_dbg_trigger_cmd);
1498 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1499 sizeof(struct iwl_fw_dbg_trigger_mlme);
1500 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1501 sizeof(struct iwl_fw_dbg_trigger_stats);
1502 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1503 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1504 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1505 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1506 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1507 sizeof(struct iwl_fw_dbg_trigger_time_event);
1508 trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1509 sizeof(struct iwl_fw_dbg_trigger_ba);
1510 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1511 sizeof(struct iwl_fw_dbg_trigger_tdls);
1512
1513 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) {
1514 if (pieces->dbg_trigger_tlv[i]) {
1515 /*
1516 * If the trigger isn't long enough, WARN and exit.
1517 * Someone is trying to debug something and he won't
1518 * be able to catch the bug he is trying to chase.
1519 * We'd better be noisy to be sure he knows what's
1520 * going on.
1521 */
1522 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1523 (trigger_tlv_sz[i] +
1524 sizeof(struct iwl_fw_dbg_trigger_tlv))))
1525 goto out_free_fw;
1526 drv->fw.dbg.trigger_tlv_len[i] =
1527 pieces->dbg_trigger_tlv_len[i];
1528 drv->fw.dbg.trigger_tlv[i] =
1529 kmemdup(pieces->dbg_trigger_tlv[i],
1530 drv->fw.dbg.trigger_tlv_len[i],
1531 GFP_KERNEL);
1532 if (!drv->fw.dbg.trigger_tlv[i])
1533 goto out_free_fw;
1534 }
1535 }
1536
1537 /* Now that we can no longer fail, copy information */
1538
1539 drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv;
1540 pieces->dbg_mem_tlv = NULL;
1541 drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv;
1542
1543 /*
1544 * The (size - 16) / 12 formula is based on the information recorded
1545 * for each event, which is of mode 1 (including timestamp) for all
1546 * new microcodes that include this information.
1547 */
1548 fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1549 if (pieces->init_evtlog_size)
1550 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1551 else
1552 fw->init_evtlog_size =
1553 drv->trans->trans_cfg->base_params->max_event_log_size;
1554 fw->init_errlog_ptr = pieces->init_errlog_ptr;
1555 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1556 if (pieces->inst_evtlog_size)
1557 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1558 else
1559 fw->inst_evtlog_size =
1560 drv->trans->trans_cfg->base_params->max_event_log_size;
1561 fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1562
1563 /*
1564 * figure out the offset of chain noise reset and gain commands
1565 * base on the size of standard phy calibration commands table size
1566 */
1567 if (fw->ucode_capa.standard_phy_calibration_size >
1568 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1569 fw->ucode_capa.standard_phy_calibration_size =
1570 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1571
1572 /* We have our copies now, allow OS release its copies */
1573 release_firmware(ucode_raw);
1574
1575 mutex_lock(&iwlwifi_opmode_table_mtx);
1576 switch (fw->type) {
1577 case IWL_FW_DVM:
1578 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1579 break;
1580 default:
1581 WARN(1, "Invalid fw type %d\n", fw->type);
1582 /* fall through */
1583 case IWL_FW_MVM:
1584 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1585 break;
1586 }
1587
1588 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1589 drv->fw.fw_version, op->name);
1590
1591 iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans);
1592
1593 /* add this device to the list of devices using this op_mode */
1594 list_add_tail(&drv->list, &op->drv);
1595
1596 if (op->ops) {
1597 drv->op_mode = _iwl_op_mode_start(drv, op);
1598
1599 if (!drv->op_mode) {
1600 mutex_unlock(&iwlwifi_opmode_table_mtx);
1601 goto out_unbind;
1602 }
1603 } else {
1604 load_module = true;
1605 }
1606 mutex_unlock(&iwlwifi_opmode_table_mtx);
1607
1608 /*
1609 * Complete the firmware request last so that
1610 * a driver unbind (stop) doesn't run while we
1611 * are doing the start() above.
1612 */
1613 complete(&drv->request_firmware_complete);
1614
1615 /*
1616 * Load the module last so we don't block anything
1617 * else from proceeding if the module fails to load
1618 * or hangs loading.
1619 */
1620 if (load_module) {
1621 request_module("%s", op->name);
1622 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1623 if (err)
1624 IWL_ERR(drv,
1625 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1626 op->name, err);
1627 #endif
1628 }
1629 goto free;
1630
1631 try_again:
1632 /* try next, if any */
1633 release_firmware(ucode_raw);
1634 if (iwl_request_firmware(drv, false))
1635 goto out_unbind;
1636 goto free;
1637
1638 out_free_fw:
1639 release_firmware(ucode_raw);
1640 out_unbind:
1641 complete(&drv->request_firmware_complete);
1642 device_release_driver(drv->trans->dev);
1643 free:
1644 if (pieces) {
1645 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1646 kfree(pieces->img[i].sec);
1647 kfree(pieces->dbg_mem_tlv);
1648 kfree(pieces);
1649 }
1650 }
1651
iwl_drv_start(struct iwl_trans * trans)1652 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1653 {
1654 struct iwl_drv *drv;
1655 int ret;
1656
1657 drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1658 if (!drv) {
1659 ret = -ENOMEM;
1660 goto err;
1661 }
1662
1663 drv->trans = trans;
1664 drv->dev = trans->dev;
1665
1666 init_completion(&drv->request_firmware_complete);
1667 INIT_LIST_HEAD(&drv->list);
1668
1669 #ifdef CONFIG_IWLWIFI_DEBUGFS
1670 /* Create the device debugfs entries. */
1671 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1672 iwl_dbgfs_root);
1673
1674 /* Create transport layer debugfs dir */
1675 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1676 #endif
1677
1678 drv->trans->dbg.domains_bitmap = IWL_TRANS_FW_DBG_DOMAIN(drv->trans);
1679
1680 ret = iwl_request_firmware(drv, true);
1681 if (ret) {
1682 IWL_ERR(trans, "Couldn't request the fw\n");
1683 goto err_fw;
1684 }
1685
1686 return drv;
1687
1688 err_fw:
1689 #ifdef CONFIG_IWLWIFI_DEBUGFS
1690 debugfs_remove_recursive(drv->dbgfs_drv);
1691 iwl_dbg_tlv_free(drv->trans);
1692 #endif
1693 kfree(drv);
1694 err:
1695 return ERR_PTR(ret);
1696 }
1697
iwl_drv_stop(struct iwl_drv * drv)1698 void iwl_drv_stop(struct iwl_drv *drv)
1699 {
1700 wait_for_completion(&drv->request_firmware_complete);
1701
1702 _iwl_op_mode_stop(drv);
1703
1704 iwl_dealloc_ucode(drv);
1705
1706 mutex_lock(&iwlwifi_opmode_table_mtx);
1707 /*
1708 * List is empty (this item wasn't added)
1709 * when firmware loading failed -- in that
1710 * case we can't remove it from any list.
1711 */
1712 if (!list_empty(&drv->list))
1713 list_del(&drv->list);
1714 mutex_unlock(&iwlwifi_opmode_table_mtx);
1715
1716 #ifdef CONFIG_IWLWIFI_DEBUGFS
1717 drv->trans->ops->debugfs_cleanup(drv->trans);
1718
1719 debugfs_remove_recursive(drv->dbgfs_drv);
1720 #endif
1721
1722 iwl_dbg_tlv_free(drv->trans);
1723
1724 kfree(drv);
1725 }
1726
1727
1728 /* shared module parameters */
1729 struct iwl_mod_params iwlwifi_mod_params = {
1730 .fw_restart = true,
1731 .bt_coex_active = true,
1732 .power_level = IWL_POWER_INDEX_1,
1733 .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1734 .enable_ini = true,
1735 /* the rest are 0 by default */
1736 };
1737 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1738
iwl_opmode_register(const char * name,const struct iwl_op_mode_ops * ops)1739 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1740 {
1741 int i;
1742 struct iwl_drv *drv;
1743 struct iwlwifi_opmode_table *op;
1744
1745 mutex_lock(&iwlwifi_opmode_table_mtx);
1746 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1747 op = &iwlwifi_opmode_table[i];
1748 if (strcmp(op->name, name))
1749 continue;
1750 op->ops = ops;
1751 /* TODO: need to handle exceptional case */
1752 list_for_each_entry(drv, &op->drv, list)
1753 drv->op_mode = _iwl_op_mode_start(drv, op);
1754
1755 mutex_unlock(&iwlwifi_opmode_table_mtx);
1756 return 0;
1757 }
1758 mutex_unlock(&iwlwifi_opmode_table_mtx);
1759 return -EIO;
1760 }
1761 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1762
iwl_opmode_deregister(const char * name)1763 void iwl_opmode_deregister(const char *name)
1764 {
1765 int i;
1766 struct iwl_drv *drv;
1767
1768 mutex_lock(&iwlwifi_opmode_table_mtx);
1769 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1770 if (strcmp(iwlwifi_opmode_table[i].name, name))
1771 continue;
1772 iwlwifi_opmode_table[i].ops = NULL;
1773
1774 /* call the stop routine for all devices */
1775 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1776 _iwl_op_mode_stop(drv);
1777
1778 mutex_unlock(&iwlwifi_opmode_table_mtx);
1779 return;
1780 }
1781 mutex_unlock(&iwlwifi_opmode_table_mtx);
1782 }
1783 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1784
iwl_drv_init(void)1785 static int __init iwl_drv_init(void)
1786 {
1787 int i, err;
1788
1789 mutex_init(&iwlwifi_opmode_table_mtx);
1790
1791 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1792 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1793
1794 pr_info(DRV_DESCRIPTION "\n");
1795
1796 #ifdef CONFIG_IWLWIFI_DEBUGFS
1797 /* Create the root of iwlwifi debugfs subsystem. */
1798 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1799 #endif
1800
1801 err = iwl_pci_register_driver();
1802 if (err)
1803 goto cleanup_debugfs;
1804
1805 return 0;
1806
1807 cleanup_debugfs:
1808 #ifdef CONFIG_IWLWIFI_DEBUGFS
1809 debugfs_remove_recursive(iwl_dbgfs_root);
1810 #endif
1811 return err;
1812 }
1813 module_init(iwl_drv_init);
1814
iwl_drv_exit(void)1815 static void __exit iwl_drv_exit(void)
1816 {
1817 iwl_pci_unregister_driver();
1818
1819 #ifdef CONFIG_IWLWIFI_DEBUGFS
1820 debugfs_remove_recursive(iwl_dbgfs_root);
1821 #endif
1822 }
1823 module_exit(iwl_drv_exit);
1824
1825 #ifdef CONFIG_IWLWIFI_DEBUG
1826 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1827 MODULE_PARM_DESC(debug, "debug output mask");
1828 #endif
1829
1830 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1831 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1832 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1833 MODULE_PARM_DESC(11n_disable,
1834 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1835 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1836 MODULE_PARM_DESC(amsdu_size,
1837 "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, "
1838 "4K for other devices 1:4K 2:8K 3:12K 4: 2K (default 0)");
1839 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1840 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1841
1842 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1843 MODULE_PARM_DESC(nvm_file, "NVM file name");
1844
1845 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1846 MODULE_PARM_DESC(uapsd_disable,
1847 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1848 module_param_named(enable_ini, iwlwifi_mod_params.enable_ini,
1849 bool, S_IRUGO | S_IWUSR);
1850 MODULE_PARM_DESC(enable_ini,
1851 "Enable debug INI TLV FW debug infrastructure (default: true");
1852
1853 /*
1854 * set bt_coex_active to true, uCode will do kill/defer
1855 * every time the priority line is asserted (BT is sending signals on the
1856 * priority line in the PCIx).
1857 * set bt_coex_active to false, uCode will ignore the BT activity and
1858 * perform the normal operation
1859 *
1860 * User might experience transmit issue on some platform due to WiFi/BT
1861 * co-exist problem. The possible behaviors are:
1862 * Able to scan and finding all the available AP
1863 * Not able to associate with any AP
1864 * On those platforms, WiFi communication can be restored by set
1865 * "bt_coex_active" module parameter to "false"
1866 *
1867 * default: bt_coex_active = true (BT_COEX_ENABLE)
1868 */
1869 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1870 bool, 0444);
1871 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1872
1873 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
1874 MODULE_PARM_DESC(led_mode, "0=system default, "
1875 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1876
1877 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
1878 MODULE_PARM_DESC(power_save,
1879 "enable WiFi power management (default: disable)");
1880
1881 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
1882 MODULE_PARM_DESC(power_level,
1883 "default power save level (range from 1 - 5, default: 1)");
1884
1885 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
1886 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
1887
1888 module_param_named(remove_when_gone,
1889 iwlwifi_mod_params.remove_when_gone, bool,
1890 0444);
1891 MODULE_PARM_DESC(remove_when_gone,
1892 "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");
1893
1894 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
1895 S_IRUGO);
1896 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");
1897
